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Finding the Fourth Proportional to 473,204.80, 709,807.20 and 140,780.80

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Solution

The fourth proportional to 473,204.80, 709,807.20 and 140,780.80 is: 211,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,204.80 : 709,807.20 = 140,780.80 : x
  2. Step 2: Convert to fraction form
    473,204.80/709,807.20 = 140,780.80/x
  3. Step 3: Cross multiply
    473,204.80x = 709,807.20 × 140,780.80
  4. Step 4: Simplify right side
    473,204.80x = 99,927,225,461.76
  5. Step 5: Solve for x
    x = 99,927,225,461.76/473,204.80
  6. Step 6: Final answer
    x = 211,171.20

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.